Optimizing agricultural management in China for soil greenhouse gas emissions and yield balance: A regional heterogeneity perspective

Li, Hanbing; Jin, Xiaobin; Shan, Wei; Han, Bo; Zhou, Yinkang; Tittonell, Pablo

doi:10.1016/j.jclepro.2024.142255

Journal of Cleaner Production

2024

DOI: 10.1016/j.jclepro.2024.142255

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Optimizing agricultural management in China for soil greenhouse gas emissions and yield balance: A regional heterogeneity perspective

Hanbing Li,

Xiaobin Jin,

Wei Shan

et al.

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2024

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Cited by 3 publications

References 83 publications

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Exploring the application and decision optimization of climate-smart agriculture within land-energy-food-waste nexus

Yu,

Bi,

Liu

et al. 2024

Sustainable Production and Consumption

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Exploring the application and decision optimization of climate-smart agriculture within land-energy-food-waste nexus

Yu,

Bi,

Liu

et al. 2024

Sustainable Production and Consumption

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Identifying the Complexity of the Food-Energy-Water Nexus Based on Emergy Analysis in Crop Production Systems of China

Guo,

Cheng,

Sun

et al. 2024

Land

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To elucidate the food-energy-water (FEW) nexus, the paper proposes a framework for multifunctional development objectives within the context of CPSs, integrating emergy analysis and the coupled coordination model. The article’s primary focus is on the utilization of blue and green water in the cultivation of a variety of food crops and the acquisition of purchased energy. The paper was evaluated according to three key indicators: stability, development, and sustainability. Furthermore, a quantitative evaluation of the trade-offs among the FEW nexus and its constituent sub-nexuses was conducted over the period from 2000 to 2022. The study revealed that China has witnessed an expansion in its total CPS inputs, with renewable inputs accounting for 32.89% and an average annual input-output ratio of 37.98%. The annual emergy values for food, energy, and water resources were 6.85 × 1023 Sej, 1.43 × 1023 Sej, and 7.91 × 1022 Sej, respectively. The annual growth rates were 2.16%, 2.11%, and 0.77%, respectively. The CPS exhibits an average proportion of green and blue water resources of 64.37% and 35.63%, respectively. The coupling coordination of the FEW nexus demonstrates a transition between years from mild dysfunctional recession to quality coordinated development, with the coordinated use of FEW resources increasing for maize, largely maintained for rice, and decreasing for wheat, soybean, and potato. The objective of this study is to provide differentiated strategies for regional food conservation and sustainable development worldwide.

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Effect of mulching and organic manure on maize yield, water, and nitrogen use efficiency in the Loess Plateau of China

Xing,

Fu,

Wang

2024

PeerJ

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Current agricultural practices prioritize intensive food production, often at the expense of environmental sustainability. This approach results in greenhouse gas emissions and groundwater pollution due to over-fertilization. In contrast, organic agriculture promotes a more efficient use of non-renewable energy, improves soil quality, and reduces ecological damage. However, the effects of mulching and organic manure on maize yield, water use efficiency (WUE), and nitrogen use efficiency (NUE) in China’s Loess Plateau have not been sufficiently researched. In 2017 and 2018, an experiment utilizing a randomized complete block design with two factors (two mulching levels × three organic nitrogen application rates) was conducted. The water content of the upper soil layer was found to be 12.6% to 19.4% higher than that of the subsoil layer. Across all soil depths and years, the soil nitrate-N content in mulched treatments was 10% to 31.8% greater than in non-mulched treatments with varying organic nitrogen rates. Additionally, mulching resulted in an increase in grain yield of 9.4% in 2017 and 8.9% in 2018 compared to non-mulched treatments. A significant interaction was observed between mulching and organic nitrogen application rate concerning WUE, alongside a negative correlation between WUE and NUE. These findings suggest that the application of 270 kg N ha−1 of sheep manure in conjunction with mulching is a highly recommended practice for the Loess Plateau, thereby supporting sustainable agricultural strategies.

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Optimizing agricultural management in China for soil greenhouse gas emissions and yield balance: A regional heterogeneity perspective

Cited by 3 publications

References 83 publications

Exploring the application and decision optimization of climate-smart agriculture within land-energy-food-waste nexus

Exploring the application and decision optimization of climate-smart agriculture within land-energy-food-waste nexus

Identifying the Complexity of the Food-Energy-Water Nexus Based on Emergy Analysis in Crop Production Systems of China

Effect of mulching and organic manure on maize yield, water, and nitrogen use efficiency in the Loess Plateau of China

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